Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

184769 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 5620, results 140476 - 140500

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Earthquakes, January-February, 1980
W. J. Person
1980, Earthquake Information Bulletin (USGS) (12) 200-202
Two major earthquakes (magntidue 7.0-7.9) occurred during this reporting period. The first struck in the North Atlantic Ocean in the Azores Islands on News Year's Day, causing fatalities and damage. The second major quake was on February 24 in the sparsely populated Kuril Islands of the northwest Pacific. A magnitude...
Earthquakes, July-August, 1979
W. J. Person
1980, Earthquake Information Bulletin (USGS) (12) 36-39
There was one major (magnitude 7.0-7.9) earthquake during this reporting period. The quake occurred on August 26 in the Philippine Islands. Strong or damaging earthquakes, which struck many parts of the world, caused casualties and damage; deaths were reported in China and Kashmir, and damaging earthquakes occurred in Costa Rica,...
Tremors from earthquakes and blasting in the Powder River basin of Wyoming and Montana
C.H. Miller, F. W. Osterwald
1980, Earthquake Information Bulletin (USGS) (12) 212-219
Coal in the Powder River Basin of Wyoming and Montana (fig. 1) is greatly in demand. It can be economically mined from the surface, and the land is much easier to reclaim than land above underground mines that has been damaged by subsidence or by underground fires. Exploitation of the...
Visitor use patterns in Yosemite National Park
J. W. van Wagtendonk
1980, Journal of Travel Research (19) 12-17
After several years of dramatic increases, visitor use in Yosemite National Park has leveled off to an average of 2.4 million visits per year. Coincident with this decline in the growth rate, there have been some changes in visitation trends and patterns. Data collected in the park show that the...
Travel time variation on backcountry trails
J. W. van Wagtendonk, J.M. Benedict
1980, Journal of Leisure Research (12) 99-106
Numerous interrelated factors influence the travel times of hikers and riders on backcountry trails. This study sought to quantify those factors which were thought to be most important in affecting trail speeds. The travel times of 897 backpacking parties, 634 day hiking parties, and 111 riding parties were obtained from...
Inferences regarding survival and recovery rates of winter-banded canvasbacks
James D. Nichols, G.Michael Haramis
1980, Journal of Wildlife Management (44) 164-173
Banding and recovery data from 3 populations of winter-banded canvasbacks (Aythya valisineria) were analyzed and survival and recovery rates were estimated. Sex-specific differences in these rates were detected in some populations, and lower survival rates were exhibited by females. Some geographic variation in survival rates was evident, suggesting that canvasbacks...
Wilderness permit compliance and validity
J. W. van Wagtendonk, J.M. Benedict
1980, Journal of Forestry (78) 399-401
In Yosemite National Park, 92 percent of the parties using back country areas had permits. Parties without permits were smaller in size and stayed for shorter periods of time. For all parties with permits, 62 percent made changes to their trips. Parties changing their trips in both time and...