34 Site Longitude Latitude Site, State/Province Reg MSA MSA_Pop MSA_desc beg_date end_date 080013001 -104.9489 39.8392 Welby - 78th Ave. & Steele St. CO 08 2080 1622980 Denver CO 20040105 20150424 080050002 -104.9572 39.5689 Highland Reservoir - 8100 S. University CO 08 2080 1622980 Denver CO 20040105 20130930 080130011 -105.2383 39.9569 Boulder - SBCreek - 1405 1/2 S. Foothill CO 08 1125 225339 Boulder-Longmont CO 20040105 20150424 080310014 -105.0308 39.7519 Denver - Carriage - 23rd Ave. & Julian S CO 08 2080 1622980 Denver CO 20040105 20130403 080350002 -105.0650 39.5375 Chatfield Reservoir ROXBOROUGH PARK ROAD CO 08 2080 1622980 Denver CO 20040304 20040505 080410013 -104.8167 38.9583 Colorado Springs - USAF Academy CO 08 1720 397014 Colorado Springs CO 20040105 20150424 080590002 -105.0992 39.8006 Arvada - W. 57th Ave. & Garrison St. CO 08 2080 1622980 Denver CO 20040105 20120201 080590005 -105.1389 39.6389 Welch - 12400 W. Hwy 285 CO 08 2080 1622980 Denver CO 20040105 20150424 080590006 -105.1883 39.9128 Rocky Flats - N - 16600 W. Colo. Hwy. 12 CO 08 2080 1622980 Denver CO 20040105 20150424 080590011 -105.1786 39.7419 Golden - NREL - 2054 Quaker St. CO 08 2080 1622980 Denver CO 20040105 20150424 080690007 -105.5453 40.2778 Rocky Mountain NP CO 08 2670 186136 Fort Collins-Loveland CO 20040503 20150311 080691004 -105.0794 40.5764 Fort Collins - CSU - 708 S. Mason St. CO 08 2670 186136 Fort Collins-Loveland CO 20040105 20150424 080830101 -108.4903 37.1983 Mesa Verde NP CO 08 0000 1 Not in an MSA 20040505 20150424 081230009 -104.7367 40.3861 Greeley - Weld Co. Tower - 3101 35th Ave CO 08 3060 131821 Greeley CO 20040105 20150424 089990001 -103.8333 40.5000 Proxy Site 1 - ENE of Greeley CO 08 -888 -999 Unknown, proxy site 20040101 20100512 089990002 -105.3000 40.2833 Proxy Site 2 - W of Fort Collins CO 08 -888 -999 Unknown, proxy site 20040101 20100512 089990003 -105.6667 39.5000 Proxy Site 3 - WSW of Denver CO 08 -888 -999 Unknown, proxy site 20040101 20100512 089990004 -105.6667 38.8333 Proxy Site 4 - W of Colorado Springs CO 08 -888 -999 Unknown, proxy site 20040101 20100512 089990005 -103.8333 39.2833 Proxy Site 5 - near Limon CO 08 -888 -999 Unknown, proxy site 20040101 20100512 089990006 -104.8333 41.0000 Proxy Site 6 - near CO/WY state border CO 08 -888 -999 Unknown, proxy site 20040101 20100512 080410016 -104.9014 38.8531 Manitou Springs - 101 Banks Pl. CO 08 1720 397014 Colorado Springs CO 20040423 20150424 080590012 -105.2467 39.7247 Lookout Mountain CO 08 2080 1622980 Denver CO 20040521 20040912 080350004 -105.0700 39.5339 Chatfield Park - 11500 N. Roxborough Par CO 08 2080 1622980 Denver CO 20040602 20150424 080310002 -104.9872 39.7511 Denver - CAMP - 2105 Broadway CO 08 2080 1622980 Denver CO 20060101 20150424 080690011 -105.1408 40.5922 Fort Collins - West - Laporte Ave. & Ove CO 08 2670 186136 Fort Collins-Loveland CO 20080418 20150424 080771001 -108.7408 39.1067 Colorado National Monument - Maintenance CO 08 2995 93145 Grand Junction CO 20080420 20121001 080310025 -104.9981 39.7039 Denver Animal Shelter - 678 S. Jason St. CO 08 2080 1622980 Denver CO 20080731 20120828 080519991 -106.9855 38.9564 Gothic CO 08 0000 1 Not in an MSA 20100102 20150424 080590013 -105.2983 39.5414 Aspen Park CO 08 2080 1622980 Denver CO 20100101 20150424 080450012 -107.7839 39.5417 Rifle Ozone CO 08 0000 1 Not in an MSA 20100707 20150424 080770020 -108.3136 39.1306 Palisade Ozone CO 08 2995 93145 Grand Junction CO 20100707 20150424 080830006 -108.5869 37.5500 Cortez Ozone CO 08 0000 1 Not in an MSA 20100707 20150424 081030006 -999.0000 -999.0000 CO 08 -555 -999 Unknown, new site 20110701 20150424 080570003 -999.0000 -999.0000 CO 08 -555 -999 Unknown, new site 20120116 20150424